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Finding the Fourth Proportional to 556,961.60, 835,442.40 and 346,491.20

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Solution

The fourth proportional to 556,961.60, 835,442.40 and 346,491.20 is: 519,736.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,961.60 : 835,442.40 = 346,491.20 : x
  2. Step 2: Convert to fraction form
    556,961.60/835,442.40 = 346,491.20/x
  3. Step 3: Cross multiply
    556,961.60x = 835,442.40 × 346,491.20
  4. Step 4: Simplify right side
    556,961.60x = 289,473,439,706.88
  5. Step 5: Solve for x
    x = 289,473,439,706.88/556,961.60
  6. Step 6: Final answer
    x = 519,736.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.